EP 1265436 A1 20021211 - Picture image processing apparatus and method, and picture processing system
Title (en)
Picture image processing apparatus and method, and picture processing system
Title (de)
Bildverarbeitungsvorrichtung und -verfahren
Title (fr)
Appareil et procédé de traitement d'images
Publication
Application
Priority
JP 2001172954 A 20010607
Abstract (en)
A picture image processing apparatus is provided with a hue calculating portion for calculating a hue pixel by pixel based on a RGB data, a first sampling portion for sampling pixels having a hue corresponding to a skin color from the RGB data, a first characteristic quantity calculating portion for calculating a first characteristic quantity representing a characteristic of the RGB data of the pixels sampled by the first sampling portion, a second sampling portion for sampling the pixels located in a central part of an image area, a second characteristic quantity calculating portion for calculating a second characteristic quantity representing a characteristic of the RGB data of the pixels sampled by the second sampling portion, a correction amount calculating portion for calculating a density correction amount using the first and second characteristic quantities, and a density correcting portion for correcting the density of the RGB data using the density correction amount. The density of a main subject in the image can be properly corrected. <IMAGE>
IPC 1-7
IPC 8 full level
G06T 1/00 (2006.01); G06T 5/00 (2006.01); G06T 7/40 (2006.01); G06V 10/56 (2022.01); G06V 10/98 (2022.01); H04N 1/407 (2006.01); H04N 1/46 (2006.01); H04N 1/60 (2006.01); H04N 9/68 (2006.01); H04N 9/69 (2006.01)
CPC (source: EP US)
G06T 7/90 (2016.12 - EP US); G06V 10/56 (2022.01 - EP US); G06V 10/98 (2022.01 - EP US); G06V 10/993 (2022.01 - EP US); H04N 1/6027 (2013.01 - EP US)
Citation (search report)
- [PA] EP 1126410 A1 20010822 - KONINKL PHILIPS ELECTRONICS NV [NL]
- [A] US 5724456 A 19980303 - BOYACK JAMES R [US], et al
- [A] US 4792847 A 19881220 - SHIMAZAKI OSAMU [JP], et al
- [A] EP 0701362 A2 19960313 - EASTMAN KODAK CO [US]
- [A] US 5719540 A 19980217 - TAKAOKA NAOKI [JP], et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1265436 A1 20021211; EP 1265436 B1 20051207; CN 1165016 C 20040901; CN 1391192 A 20030115; DE 60207785 D1 20060112; DE 60207785 T2 20060817; JP 2002369020 A 20021220; JP 3733873 B2 20060111; US 2002191204 A1 20021219; US 7221476 B2 20070522
DOCDB simple family (application)
EP 02012384 A 20020606; CN 02121894 A 20020607; DE 60207785 T 20020606; JP 2001172954 A 20010607; US 16211002 A 20020605